Got Questions About SIP Devices,
OEM Orders, or Technical Specs?
We've Answered Them All Here.

✅ Yes. All DJSlink SIP devices comply with SIP 2.0 (RFC 3261) and are tested for interoperability with 3CX, Asterisk, FreePBX, Cisco UCM, Yeastar, and other major SIP servers. Our engineering team maintains an up-to-date compatibility matrix. If you're using a specific platform, contact us and we'll confirm compatibility before your order.

✅ Yes. Most of our SIP intercoms, IP phones, and door stations support IEEE 802.3af/at PoE, eliminating the need for separate power supplies. Specific models also support dual LAN pass-through for simplified cabling in large deployments. PoE specs are listed on each product datasheet.

✅ Yes. DJSlink devices include HTTP API, CGI commands, and optional SDK packages, designed for system integrators and platform developers who need to embed our hardware into their own software environments. Full API documentation is provided to qualified ODM/OEM partners under NDA.

Our devices support:

• SIP 2.0 / RTP / RTCP — for VoIP communication
• ONVIF Profile S/T — for IP camera integration
• HTTP / HTTPS CGI — for remote management
• DHCP / Static IP / DNS — for network flexibility
• TLS / SRTP — for encrypted communication (select models)

Full protocol specs per product are available in the Technical Datasheet Pack.

• Standard outdoor models: IP65 (dust-tight, water jet resistant)
• Weatherproof / Heavy-duty models: IP66 / IP67 (submersion resistant)
• Explosion-proof models: IP67 + ATEX Zone 1/2 + IECEx certified

IP ratings are marked on every product label and confirmed in the QC report.

✅ Yes. Our explosion-proof and weatherproof series are rated for:

• Operating temperature: -40°C to +70°C
• Humidity: 5%–95% non-condensing
• Housing: Stainless steel or aluminum alloy, corrosion-resistant coating

Suitable for mining, offshore platforms, oil refineries, and polar-region outdoor deployments.

✅ Yes. Selected SIP Intercom and Door Station models include HD cameras (1080p), night vision, and support ONVIF/RTSP for video streaming into VMS or security platforms. Video intercom models are available in vandal-resistant and weatherproof variants.

✅ All DJSlink SIP devices support:

• Remote firmware update via HTTP/HTTPS
• Batch provisioning via TFTP/FTP/HTTP auto-provisioning
• Configuration backup/restore

For OEM/ODM partners, we can pre-configure firmware settings to match your platform defaults before shipment.

DJSlink products carry the following certifications depending on product type:

✅ Yes. Original certificates (PDF, stamped and signed) are provided:

• Automatically with every B2B order confirmation
• On request for pre-purchase evaluation or tender submission
• Urgently within 4 business hours via email

✅ Yes. Our ATEX-certified explosion-proof telephone line is certified for:

• Zone 1: Flammable gas present under normal operation
• Zone 2: Flammable gas present occasionally
• Gas Groups: IIA, IIB (propane, ethylene environments)
• Temperature Class: T4 / T5

These devices have passed independent third-party ATEX testing. Full test reports available on request.

✅ All DJSlink products are RoHS 2.0 compliant (EU Directive 2011/65/EU), restricting all six hazardous substances including lead, mercury, cadmium, and chromium VI. RoHS declarations are included in the documentation pack for every shipment.

We can provide the following documentation package for project bidding:

• CE / FCC / ATEX / IECEx certificates
• ISO 9001 quality management certificate
• RoHS declaration of conformity
• QC inspection report (per batch)
• Factory audit summary
• Product compliance statement letter (on company letterhead)

MOQ: 1 piece for standard catalogue products. For OEM/ODM custom orders:

• Logo printing / label customization: MOQ 50 pcs
• Custom housing / color: MOQ 100 pcs
• Custom firmware / API integration: MOQ 200 pcs
• Full ODM (custom hardware design): MOQ negotiated by project scope

✅ Yes. Sample orders are welcome:

• Standard sample: 1–3 units, full price + shipping
• Evaluation kit (for integrators): Available for qualified partners
• Sample turnaround: 3–7 business days

We recommend requesting a sample with the exact firmware configuration needed for your SIP server environment.

We maintain buffer stock for top 50 SKUs to ensure fast dispatch.

✅ Yes. Rush orders are handled by our dedicated logistics team.

• In-stock items can ship within 24–48 hours of payment confirmation
• Expedited air freight available via DHL / FedEx / UPS
• Contact us with your deadline and we'll confirm feasibility within 2 hours

We operate on a tiered B2B wholesale pricing model:

OEM (Your brand on our hardware):

• Custom logo, brand name, label, packaging
• Custom color or surface finish
• Custom user interface / web portal branding
• Pre-configured firmware (SIP server, provisioning URL, UI language)

ODM (Custom hardware design):

• Custom PCB design from spec
• Custom housing / enclosure design
• Custom button layout, LED indicators, display
• Proprietary firmware features / protocol integration
• Full localization (language, compliance, frequency)

✅ Yes. NDA is standard practice for all OEM/ODM engagements. We will not disclose your product designs, branding, or project details to any third party. Documents signed before any technical discussion begins.

✅ Yes — and this is one of our most common partnership models. We provide:

• Full HTTP CGI / REST API for device control
• SDK for embedded integration (C / C++ / Python wrappers available)
• Auto-provisioning support (TFTP, HTTP, TR-069)
• Custom firmware pre-built with your platform's SIP server address
• Batch deployment tools for large-scale rollout

Technical onboarding call available with our engineering team within 48 hours of request.

✅ Yes. Full white-label units (no DJSlink branding, no visible markings) are available for OEM partners. Packaging, manuals, and stickers can all carry your brand exclusively. MOQ for white-label: 50 units per SKU.

Dedicated project manager assigned for all ODM projects.

Standard warranty: 18 months from shipment date, covering:

• Hardware manufacturing defects
• Firmware failures not caused by user modification
• Component failures under normal operating conditions

Not covered: Physical damage, water ingress beyond IP rating, voltage surges, unauthorized modifications.

Warranty claims: Send photos/video + order number → replacement or repair dispatched within 5 business days.

• 📞 Engineer on call — Mon–Sat, UTC+8 business hours
• 💬 WhatsApp 24/7 — monitored for urgent issues
• 📧 Email support — response within 4 hours
• 📹 Remote configuration support — screen sharing available
• 📄 Technical documentation — full manual, wiring diagrams, config guides
• 🎓 Training sessions — online onboarding for large orders (50+ units)

For warranty-covered failures:

• Diagnosis: Within 24 hours of receiving fault report + evidence
• Replacement dispatch: Within 3–5 business days
• Critical infrastructure (hospital, mine, government): Priority SLA available

For non-warranty repairs, we provide repair service with transparent cost estimate.

✅ Yes. DJSlink devices support:

• Auto-provisioning via TFTP/HTTP — configure 1,000 devices in one operation
• Remote firmware upgrade — OTA update over HTTP
• SNMP monitoring — for network management integration
• IP PBX admin portal — centralized control for IP PBX and dispatching console

FOB Shenzhen, CIF, and DDP options available.

✅ Yes. Dropshipping is available for qualified distributor partners:

• No DJSlink branding on outer packaging (neutral or your brand)
• Can include your company's packing slip / invoice
• Real-time tracking number provided
• Minimum order per shipment: 1 unit

• Tracking number provided within 24h of dispatch
• Carrier portal direct link sent via email and WhatsApp
• Order status dashboard available for long-term partners
• For large sea freight shipments: B/L copy and cargo photos provided

Standard export documentation package:

• ✅ Commercial Invoice
• ✅ Packing List
• ✅ Bill of Lading / AWB
• ✅ Certificate of Origin (CO) — on request
• ✅ CE / FCC / ATEX certificates — on request
• ✅ QC Inspection Report
• ✅ Form A / GSP certificate — on request for applicable countries